Hancock Jaffe Laboratories Inc development stage medical device company. It develops and sells biological tissue solutions to treat patients with coronary, vascular, end stage renal and peripheral arterial diseases in the United States and Europe. In addition, The company develops and manufactures implantable cardiovascular bioprosthetic devices. The company's key products include The Bioprosthetic Heart Valve, The CoreoGraft, and The Venous Valve.